Changes

==Petroleum province==

==Petroleum province==

'''Petroleum province''', a geographic term, is an area where petroleum occurs in commercial quantities. Basin is sometimes used geographically to mean petroleum province, such as the Williston Basin or Paris Basin. The Zagros fold belt could be a structural province or a petroleum province, not a basin.

'''Petroleum province''', a geographic term, is an area where petroleum occurs in commercial quantities. Basin is sometimes used geographically to mean petroleum province, such as the Williston Basin or Paris Basin. The Zagros [[fold]] belt could be a structural province or a petroleum province, not a basin.

A map showing differential thickness of sedimentary rocks is used to determine basins (thick), uplifts (thin), and fold belts (folded). These features are properly named provinces; if they contain petroleum, they are called petroleum provinces. The use of “basin” in this context is improper; it is also inconsistent with the [[petroleum system]] concept described below, which defines “basin” as the area into which sedimentary rocks are deposited.

A map showing differential thickness of sedimentary rocks is used to determine basins (thick), uplifts (thin), and fold belts (folded). These features are properly named provinces; if they contain petroleum, they are called petroleum provinces. The use of “basin” in this context is improper; it is also inconsistent with the [[petroleum system]] concept described below, which defines “basin” as the area into which sedimentary rocks are deposited.